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. T. J. LOUGHRIDGE.

ELECTRIC BRUSH HOLDER. No. 580,114. Patented Apr. 6, 1897.

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T. J. LOUGHRIDGE.

v ELBGTRIG BRUSH HOLDER. No. 580,114. Patented Apr, 6, 1897.

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UNITED STATES PATENT OFFIC THEODORE J. LOUGHRIDGE, OF OSHKOSH,WISCONSIN, ASSIGNOR OF ONE-HALF TO FREDERICK O. TOOMBS, OF SAME PLACE.

ELECTRIC-BRUSH HOLDER.

SPECIFICATION forming part of Letters Patent No. 580,114, dated April 6,1897.

Application filed June 1, 1896.

To all whom it may concern:

Be it known that I, THEODORE J. LOUGH- RIDGE, a citizen of the UnitedStates, residing at Oshkosh, in the county of \Vinnebago and State ofWisconsin, have invented certain new and useful Improvements inElectric-Brush Holders; and I do hereby declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

This invention relates to clamps or holders for securing electricbrushes in proper position for trimming.

My object is to provide an improved and extremely efiicient holder ofthe class described which willbe capable of quick adj ustment andadapted to accommodate brushes that require different styles of dressingor trimming.

Having this object in view, my invention consists of certain novelfeatures and combinations,as will appear more fully hereinafter.

In the accompanying drawings, Figure 1 represents a side elevation; Fig.2, a plan view; Fig. 3, an end elevation looking toward the adjustableguide or angle-finder; Fig. 4., a side elvation showing a brush in theholder and the holder in a bench-vise Fig. 5, aplan view, also showingthe holder in use; and Fig. 6, a longitudinal section.

My improved clamp consists, essentially, of two parts, a holder and anangle-finding adjustable guide.

The holder is a box-like structure open at both ends and having a base 1and duplicate sides 2 and 3. The front ends of the sides are inclined,as at 4, and also cut away, providing shoulders 5. The sides are alsoprovided with vertically-disposed slits 6 and 7, the former of which isdisposed somewhat above the latter.

The front portion of the base 1 is recessed transversely at 8 and thefront edge is beveled, as at 9.

My improved angle-finder is provided with duplicate guide-arms 10 and11, having their lower ends connected by an integral crossbar 12. Theupper edges of these arms and the cross-bar lie in the same plane.

The rear portions of the arms are formed Serial No. 593,806. (No model.)

into segmental heads 13, which are provided with curved slots 14, saidsegmental heads being connected by a cross-bar or brace 15. The numeralsl6 and 17 designate upper and lower hardened-steel rollers, which arejournaled in the arms 10 and 11 in such a manner that their peripherieswill lie flush with the upper edges of said arms. The arms are pivotallyconnected by screws to the front end of the base 1 in such manner thatthe whole upper surface of the angle-finder will lie in the same planewith the bevel 9 when the angle-finder is adjusted. Headed set-screws10' in the slots 14 afford means whereby the angle-finder can be held inadjusted position.

The numeral 18 designates a hardened-steel plate provided with slits 19and 20, through and 22. This plate is adapted for movement on thetransverse recessed portion 8 of the base of the holder.

and is adapted to be clamped down on the brush 27 being trimmed by awedge-key 28, that passes through the slits 6 and 7 and between thebraces 2a and 25.

My invention may be used in the following manner: The electric brush isslid into the holder and the clampin g-plate placed thereon. After theangle-finder has been adjusted to define the angle of the trim andlocked in position the plate 18 is adjusted and locked in such positionthat its front edge will lie in the same plane with the upper'face ofthe angle-finder. The brush may then be slid forward until in properposition, the clampin g-plate adjusted, and the wedge-key forced home,thereby locking the plate and brush in position. The holder may nowbeclamped in a vise, as shown in the drawings, and the brush treated witha tile to give it the proper bevel.

Having thus described the invention, what is claimed as new is- 1. In aclamp for holding electric brushes a holder for the brush, of anangle-finder pivoted to the holder and provided with an open face, meansfor locking the angle-finder in position at the desired angle, and anadjustwhile being trimmed, the combination with which pass the shanks ofadj Listing-screws 21 A clam ping-plate 23, provided with lockingbraces24 and 25, has a front beveled edge 26 V able plate on which the end ofthe brush rests and which is adapted to insure an even trim of thebrush, substantially as described.

2. In a clamp for holding electric brushes while being trimmed, thecombination with a holder, of an angle-finder adjustably connected tothe holder and provided with an open face, separated guide-rollersjournaled in the angle-finder, being arranged to guide the tool used intrimmingthe brnsh,and means for locking the angle-finder in adjustedposition.

3. In a clamp for holding electric brushes While being trimmed, thecombination with a holder, of an angle-finder provided with an open faceand pivotally connected to the holder, separated rollers journaled inthe angle-finder and having their peripheries lying in the same plane,and means for locking the angle-finder in adjusted position.

4. In a clamp for holding electric brushes while being trimmed, thecombination with a holder, of an adj ustable angle-finder consisting ofarms pivoted to the holder, separated rollers journaled in said arms andhaving their peripheries lying in the same plane, and

locking devices for holding the angle-finder 'THEODORE J. LOUGHRIDGE;

' \Vitnesses:

ARTHUR KELLoGe, E. \V. COLE.

